Corrugating-machine.



No. 793,316. PATENTED JUNE 27, 1905.

' A. MOMILLIN.

GORRUGATING MACHINE.

APPLICATION FILED 00T. 24. 1903.

3 SHEETS-SHEET 1.

000000 i@ N000000 'N NVENTQ VfG/3,@ y l comme @MQ/M@ No. 793,316. PATENTED JUNE 27,1905. E. A. MOMILLIN.

CORRUGATING MACHINE.

APPLICATION FILED OUT. 24. 1903.

ESHEBTS-SHEET 2.

No. 793,816. PATBNTED JUNE 27,1905. E. A. MOMILLIN.

GORRUGATING MACHINE.

APPLIVOATION FILED 00T. 24. 1903.

3 SHEETS-SHEET 3A WW' Ei Fmi. www

Nrren .STATES Patented June 27,' 1905.

PATENT OFFICE.

CORPUGATlNG-MACHINE.

l SPECIFICATION forming part Cf Letters Patent No. 793,316, dated June 27, 1905.

Application iile October 24, 1903. Serial No. 178,369.

To Amii il'wm it 11m/ U conce/vi;

Be it known that I, EDWARD A. MCMILLrN, a citizen of the United States,` residing at North Adams, county of Berkshire, and State of ltlassachusetts, have invented certain new and useful Improvements in Corrugating- Machines, of which the following isj a speciiication.

The invention relates to such improvements and it consists of the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification.

Similar characters refer to similar parts in the several figures therein.

Figure l of the drawings is a to plan View. of my improved corrugating-mac ne. Fig. 2 is a view in side elevation of the same. Fig. 3 is a top plan View of the bottom guideplate for the corrugating-chains. Fig. 4 is a vertical cross-section taken through the top and bottom guidelates and interposed chains on the broken ine 4 4 in Fig. 2. Fig. 5 is a similar section taken on the broken line 5 5 in Fig.V 2. Fig. 6 is a cross-section of a portion of the corrugated material. Figs. 4, 5, and 6yare drawn on a larger scale than Figs. l, 2, and 3.

The object of my invention is to corrugate sheet material, and more particularlyY to provide a strip of sheet material of indefinite length with corrugations extending longitudinally of the strip.

The invention is particularly adapted for corrugating various kinds of sheet material and is particularly adapted for corrugating paper or pasteboard.

Ihave-shown in the drawings my invention embodied in its preferred form in a machine for corrugating paper or pasteboard.

Referring to the drawings, 1 is the frame of the machine, adapted to support in suitable bearings at one end thereof a pair of rolls 2 and 3, provided each with a plurality of sets of sprocket-teeth 4, and in suitable bearings at the other end thereof a pair of rolls 5 and 6, provided with peripheral grooves 7. A plurality of endless chains 8 are passed around the lower rolls 3 and 6, being ocated in the respective grooves in the roll 6 and adapted to engage the respective sets of sprocket-teeth on the roll 3. A corresponding series of endless chains 9 are lassed around the upper rolls 2 and 5, being ocated in the respective grooves in the roll 5 and adapted to engage the respective sets of sprocket-teeth on the roll 2. The grooves 7 and the sets of sprocket-teeth 4 on the respective rolls are so located that the chains 8 are arranged in alternation with the chains 9, and the respective rolls are so located that the upper reaches of the chains 8 between the lower rolls are in close proximity to the under reaches of the chains 9 between the rolls 2 and 5. The rolls 2 and 3 are also separated from each other by a less distance than are the rolls 5 and 6, the arrangement being such that the under reaches of the chains 9 occupy a plane inclined to that occupied by the upper reaches of the chains 8.

.The alternate links in the chains 8 and 9 are provided with corrugating members 10, which project outwardly from the chains and are adapted to engage the opposite sides of sheet material passed through the machine by insertion between the rolls 5 and 6. The distance between the rolls 2 and 3 is such as to cause the corrugating members 10 of the chains 9 to lap the similar corrugating'members 10 of the chains 8 as they approach said rolls, the extent of lap being substantially` equal to the depth of the corrugations required to be formed in the sheet materlal. It will thus be seen that if a piece of paper or the like be passed through the machine by insertion between the rolls 5 and and withdrawal from between the rolls 2 and 3 its opposite sides will be subjected to lines of ressure, the lines of pressure on one side a ter- `nating with those on the other and tending to form longitudinal corrugations in the material. It is found, however, that the unyielding nature of the sheet material, such as paper, requires provision for the contraction 1n width of the sheet or strip in accordance lportin each other as they approach the rolls 2 and 3.

For thepurpose of guiding the corrugatingreaches pf the chains those of each set relatively to the others in that set and those of each set relatively to those of the other set I interpose between the two sets of chain-suprolls top and bottom guide-plates 12 an 13,A between which the corrugatingreaches ofthe chains are confined in their passage `from the rolls- 5 and 6 to the rolls 2 and 3. These guide-plates are formed,substantially alike, the construction being illustrated in connection with the bottom plate in 3. These plates may be adjusted at the proper degree of inclination to each other by means of the screw-bolts 14, by means of which the plates can be drawn together, and the screwbolts 15, by means of which the plates can be forced apart. The under plate 12 is yrigidly mounted upon the frame of the machine by means of brackets 17. The upper reaches of the chains Srest by gravity u on the under plate 12 in passing from thevrol 6 tothe roll 3, and the under reaches of the chains'Q in passing from the roll 5 to roll 2 are held against the under side ofthe upper plate 13 by tension upon said chains induced by engagement with their upper reaches of the tension-rolls 18, a separate tension-roll being provided for each of said chains. Each ofsaid'tensionrolls is mounted upon the lower end of a spindle 20, vertically adjustable in a slideway in the cross-bar 22 oi the frame of the machine and is adapted to be iiXed in adjusted position by means of a set-screw 23.v The guideplates 12 and. 13 are provided on their neighboring faces with convergent guide-fianges 25, between which the chains are confined, the chains ofeach setbeing separated one from 'another by tapering guide-tongues 26, convergently arranged upon the respective plates. The guide tongues are pivotally mounted at their wider ends upon the respecy tive plates by means of pins 27.

The guide-tongues are preferably separated onefrom another by'a space adapted to receive the corrugating members 10 of a -chain while permitting the connecting-links of the chain to pass between said tongues and the plate upon which the same are mounted, as shown in Fig. 5. The' con'vergent ends of the to adapt themse ves to positions induced by the confinement. of 'the chains between the convergent ends of the guide-flanges 2'5, sufficient space only being left between the convergent ends of said' guide-flanges 25 iride-tongues 26 are left free maar@ to accommodate the alternately-arranged chains and the corrugated material interposed therebetween.

The neighboring faces of the guide-plates 12 and 13 are substantially tangential to the rolls 2 and 3, res ectively.

The rolls 5 an 6 can be adjusted toward and fromeach other by means of the setscrew 30, engageable with the movable bearing-box 31 of the roll 5, which is yieldingly sup orted by the spring 32. Adjustment of t e roll 2 toward and from the roll 3 may be accom lished in like manner.

The roll)s 2 and 3 are lprovided with intermeshing gears 34 and 35, one of said rolls being provided on its opposite end with a bevelgear 36, meshing wit a similar bevel-gear 37 on the drive-shaft 38, to which power may be Aimparted in any known manner for the purpose of operating the rolls 2 and 3, by means of which the chains are operated.

The stock or sheet material may be fed to the machine and guided thereinto in any known manner,l as by means of a pair of guide-rolls 36,\supported in advance of the rolls 5 and 6.

- In treatingcertain kinds of stock the material to be corrugated can be more successfully operated upon yif dam ened, and when so dampened meansshoul be provided for maintaining the corrugations in the sheet until the stock has been sufficiently dried to iX the corrugations therein. This can be accomplished by feeding the stock4 from the rolls2 and 3 over the bed 37, provided with longitudinal corrugations corresponding in position with the corrugationsformcd in the sheet by the corrugating-chains, the stock being held in the grooves in the corrugated kbed by means of a peripherally-flanged roller 39 or other mechanism adaptedefor that purpose. The bed ma be heated by means of a gas-burner 40, if esired, `or in any know manner. The roller 39 may be duplicatev in connection with the corrugated bed or other means provided for maintaining the form of the crrugated strip or sheet until the same has been sufliciently dried.

Ico

ITO

By means of my improved machine a strip j bination, two sets of flexible traveling coperatinv, corrugating members, the members .of eaczh set being convergent toward-each other andv arranged in alternation with the members of the other set, and means for op-x l erating said members.

2. In a corrugating-machine, and in combination, two sets of flexible traveling coperating, alternately-arranged, corrugating members, the members of each set being convergent toward each other and inclined relatively to the members of the other set, and means for operating said members.

3. In a corrugating-machine, and in combination, two sets of flexibly-mounted, coperative, traveling corrugating members, the members oi each set being convergent toward each other and arranged in alternation with the membersof the other set, and means for operating said members.

4. In a corrugatinU-machine, and in combination, two sets of zflexibly-mounted, alternately-arranged, traveling corrugating members, the members of each set being convergent toward each other and inclined relatively to the members of the other set, and means for operating said members.

5. In a corrugating-machine, and in combination, two sets of chains provided with corrugating members, the chains of each set being convergent toward each other, and arranged in alternation with the chains of the other set.

6. In a eorrugating-machine, and in com bination, two sets of alternatelyarranged chains provided with corrugating members, the chains of each set being convergent toward Veach other and inclined relatively to the chains of the other set.

7. In a corrugatin -maehine, and in combination, two sets o alternately-arranged chains provided with corrngating members; a pair of convergent guide-plates between which said chains pass7 and means for operating the chains.

8. In a corrugating-machine, and in combination, two sets of alternately-arranged kchains provided with corrugating members;

a pair of guide-plates between which said chains pass; and convergent guides on said plates engageable with said chains.

9.v In a corrugatinfr-machine, and in combination, two sets 0I alternately-arranged chains provided with eorrugating members; a pair of vconvergent guide-plates between which said chains pass; convergent guides on the guide-plates engageable with the respective chains; and means for operating the chains. Y

10. In a corrugating-machine, and in combination, two sets of alternately-arranged chains provided with corrugating members; a pair of guide-plates between which said chains ass; convergent guide-flanges on the guide-p ates between which said chains are coniincd; convergent oruide members interposed between the neighboring chains; and means for operating the chains.

11. In a corrugating-machine, and in combination, two sets of alternatelyarranged chains provided with corrugating members;

a pair of convergent guide-plates between which said chains pass; conver ent flanges on the guide-plates between whic said chains are confined; convergent gulde members between the neighboring chains; and means for operating the chains. I

12. In a corrugating-machine, and in combination, two sets of alternately-arranged chains providedwith corrugating members; a pair of guide-plates between which said chains pass; convergent guide-flanges on the plates between which the chains are confined; convergent guide members interposed between neighboring chains pivotally mounted at their dlvergent ends upon said plates.

13. In a corrugatinr-machine, and in combination, a pair of rdlls, one rovided with chain-guides, and the other with a plurality of sets of sprocket-teeth peripherally disposed side by side thereupon and separated one from another by a space less than the distance between said chain-guideson the other roll; a set of chains provided'with corrugating members stretched upon said rolls engageable with the res ective sets of sprocketteeth lon one roll an occupying the respective chain-guides on the other roll; means for operating the sprocket-roll; and corrugating members arranged in alternation with the corrugating members on said chains and adapted to `cooperate therewith.

14. In a corrugating-machine, and in combination, a pair of guide-rolls provided each with a plurality of chain-guides; a pair of sprocket-rolls each provided with a plurality of sets of sprocket-teeth periphcrally disposed side by side thereupon7 and separated one from another bya space less than the distance between said chain-guides on the other pair of rolls, the sets of teeth on one sprocketroll bein(r arranged in alternation with those on the other sprocket-roll; a set of chains provided with corrugating members stretched upon one of said `sprocket-rolls and one of said guide-rolls; a set of chains provided with corrugating members stretched upon' the other sprocket-roll and guide-roll, said IOO chains occupying the chain-guides and being engageable with the sprocket-teeth on the res ec'tive rolls and adapted to cooperate wit each other and means for operating thc sprocket-rolls.

15. In a corrugating-maehinc, and in combination, a pair of Guide-rolls rovided each with a plurality o cliain-g11i(cs; a pair of' sprocket-rolls each provided with a plurality of sets of sprocket-teeth peripherally dispsed side by side thereupon, and separated one from another bya space less than the distance between said chain-guides on the other pair of rolls, the sets of teeth on one sprocketroll bein(Y arranged in alternation with those on the other sprocket-roll; a set of chains rovided with corrugating members stretc ied upon one of said sprocket-rolls and one of said guide-rolls; -a set ofV chains provided with corrugating members stretched upon the other sprocket-roll and guide-roll, said chains occupying the chain-guides and being IIO engageable with the sprocket-teeth on the respective rolls and adapted to cooperate with each other 3 means for operating the sprocket-rolls; a pair of convergent guideplates between which the neighboring reaches of said sets of chains pass; and convergent guide-langcs on said plates between which said chains are confined.

16. ln a corrugating-machine, and in combination, a pair of guide-rolls provided each with a plurality of chain-guidesgra pair of sprocket-rolls each provided with a plurality of sets of sprocket-teeth peripherally disposed side by side thereupon, and separated one from another bya space less than the distance between said chain-guides on the other pair of rolls7 the sets of teeth on one sprocketroll being arranged in alternation with those on the other sprocket-roll; aset of chains rovided with corrugating members stretc ed upon one of said sprocket-rolls and one of said guide-rolls; a set of chains provided with corrugating members stretched upon the other sprocket-roll and guide-roll, said chains occupying the chain-guides and being engageable with the sprocket-teeth on the respective rolls and adapted to. coperate with each other; means for operating the sprocket-rolls; a .pai-r of convergent guideplates between which the neighboring reaches of said chains pass; convergent guide-flanges on said plates between which said chains are confined; and convergent guide members interposed between neighboring chains.I

ln testimonyT whereof l have hereunto set my hand this 5th day of October, 1903.

' y EDV/'ARD A. MoMlLLlN. i Witnesses:

A. E. SPENCER, A. J. LANDRY. 

